I think this is all very exciting to say the least.
From my understanding of Marquardt's brief description of Ford GT's chassis development, that process reminds me of E30 M3's chassis development and homologation in the old days. I know it's not exactly the same, but the philosophy is similar. But that makes me question the overall chassis stiffness of the Ford GT and its crashability and passenger safety in that regard. For a very limited production vehicle, the priorities of developing the Ford GT is very different than that of the M8.
I know that this "win on Sunday, sell on Monday" mindset isn't financially feasible for most major auto manufacturers nowadays, the compromise BMW had to accept in creating the M8 GTE from the M8, or vice versa, seems like the logical step below a program like the Ford GT.
Overall, I'm very excited to wait and see how the actual M8 drives like when it finally releases. It's not a concept or a unicorn. It is very real.